Unit dose product comprising a liquid composition with encapsulated fragrance and a powder composition with pigment

Abstract

The present disclosure provides a unit dose product comprising a water-soluble film material comprising a first compartment that is adjacent to a second compartment. The first compartment encloses a liquid composition comprising an encapsulated fragrance and a non-aqueous solvent. The liquid composition can further comprise at least one additive selected from a rheology modifier, a pH-adjusting agent, water, and a bitterant. The second compartment encloses a powder composition comprising a salt, a fragrance oil, a pigment, such as a metal-containing pigment, and a flow aid. Also provided is a method of preparing the powder composition enclosed in the second compartment in the unit dose product comprising adding the pigment to the salt to provide a pigment-salt combination; followed by adding the flow aid to the pigment-salt combination.

What is claimed is: 
     
         1 . A unit dose product comprising
 a water-soluble film material comprising a first compartment and a second compartment; wherein the first compartment is adjacent to the second compartment and the first and second compartments are separated by at least one layer of the film;   the first compartment enclosing a liquid composition comprising an encapsulated fragrance and a non-aqueous solvent; and   the second compartment enclosing a powder composition comprising a salt, a fragrance oil, a pigment, and a flow aid.   
     
     
         2 . The unit dose product of  claim 1 , wherein the liquid composition further comprises at least one additive selected from a rheology modifier, a pH-adjusting agent, water, and a bitterant. 
     
     
         3 . The unit dose product of  claim 1 , wherein the pigment comprises at least one metal selected from the group consisting of aluminum, barium, cadmium, chromium, cobalt, copper, iron oxide, manganese, mercury, titanium, zinc, and any combination thereof. 
     
     
         4 . The unit dose product of  claim 1 , wherein the powder composition comprises about 0.001 wt % to about 3 wt % of pigment. 
     
     
         5 . The unit dose product of  claim 1 , wherein the powder composition does not contain a dye. 
     
     
         6 . The unit dose product of  claim 1 , wherein the encapsulated fragrance comprises a polymer shell encapsulating at least one fragrance oil. 
     
     
         7 . The unit dose product of  claim 6 , wherein the polymer shell comprises a polymer selected from the group consisting of a melamine formaldehyde, a polyamide, a polystyrene, a polyisoprene, a polycarbonate, a polyester, a polyurea, a polyurethane, a polyureaurethane, a polyolefin, a polyacrylate, a vinyl polymer, a polysaccharide, a gum, an epoxy resin, gelatin, shellac, silicone, silk, wool, gelatine, a cellulose, a protein, and any combination thereof. 
     
     
         8 . The unit dose product of  claim 1 , wherein the non-aqueous solvent comprises an alcohol, a glycol, a polyethylene glycol, or any combination thereof. 
     
     
         9 . The unit dose product of  claim 8 , wherein the non-aqueous solvent comprises polyethylene glycol, glycerin, and propylene glycol. 
     
     
         10 . The unit dose product of  claim 2 , wherein the liquid composition comprises water in an amount of 1 wt % to 20 wt % relative to the components in the liquid composition. 
     
     
         11 . The unit dose product of  claim 10 , wherein the liquid composition comprises about 10 wt % to about 20 wt % water. 
     
     
         12 . The unit dose product of  claim 2 , wherein the liquid composition comprises a rheology modifier that is an acrylic polymer, an acrylic copolymer, an Alkali Soluble Emulsion (ASE) polymer, or a Hydrophobically Modified Alkali Soluble Emulsion (HASE) polymer. 
     
     
         13 . The unit dose product of  claim 12 , wherein the rheology modifier is a copolymer comprising acrylic acid monomer units and alkyl acrylate monomer units. 
     
     
         14 . The unit dose product of  claim 2 , wherein the liquid composition comprises a pH adjusting agent that is selected from the group consisting of triethanolamine, monoethanolamine, tromethamine, sodium carbonate, sodium bicarbonate, trisodium phosphate, sodium borate, diethylenetriaminepentaacetic acid (DTPA), ethylenediaminetetraacetic acid (EDTA), methylglycinediacetic acid (MGDA), iminodisuccinic acid (IDS), ethylenediamine-N,N′-disuccinic acid (EDDS), tetrasodium glutamate diacetate (GLDA), hydrochloric acid, nitric acid, nitrous acid, sulfuric acid, sulfurous acid, phosphoric acid, boric acid, hydrobromic acid, hydroiodic acid, perchloric acid, formic acid, acetic acid, propionic acid, butanoic acid, quinic acid, shikimic acid, lactic acid, sorbic acid, caproic acid, caprylic acid, capric acid, lauric acid, and stearic acid, citric acid, isocitric acid, cis-aconitic acid, adipic acid, gluconic acid, glutaric acid, itaconic acid, ascorbic acid, succinic acid, malonic acid, malic acid, maleic acid, fumaric acid, tartaric acid, oxalic acid, and any combination thereof. 
     
     
         15 . The unit dose product of  claim 1 , wherein the salt comprises a chloride, a bromide, a iodide, a fluoride, a nitrate, a nitrite, a sulfate, a sulfite, a sulfide, a phosphate, a phosphide, a carbonate, a bicarbonate, or any combination thereof. 
     
     
         16 . The unit dose product of  claim 1 , wherein the flow aid comprises silica, calcium oxide, a silicate, an aluminate, a carbonate, a bicarbonate, a phosphate, a stearate, clay, flour, fly ash, starch, zeolite, or a combination thereof. 
     
     
         17 . The unit dose product of  claim 1 , wherein the second compartment surrounds the first compartment. 
     
     
         18 . The unit dose product of  claim 1 , wherein the water-soluble film material comprises polyvinyl alcohol. 
     
     
         19 . A method of preparing the powder composition of the unit dose product of  claim 1  comprising adding the pigment to the salt to provide a pigment-salt combination; followed by adding the flow aid to the pigment-salt combination. 
     
     
         20 . The method of  claim 19 , wherein the powder composition comprises about 0.001 wt % to about 3 wt % of pigment.